Pod Command Uses Wrong Ruby Path

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Some days ago, I updated my Macbook Pro’s OS to 10.10, then I changed the default Ruby version to other verson rather than the system default version. Today, when I used the pod install to install some third libraries, I found the followed error:

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-bash: /usr/local/bin/pod: /usr/local/Cellar/ruby/2.1.2_3/bin/ruby: bad interpreter: No such file or directory

Then I knew that the pod command used wrong ruby version.

Try many ways, but I still can’t solve it. Then I opened the cocoaPods Guides and found the followed text:

CocoaPods is built with Ruby and it will be installable with the default Ruby available on OS X. You can use a Ruby Version manager, however we recommend that you use the standard Ruby available on OS X unless you know what you're doing.

Ok, I am sorry for seeing the text too late. But now, how should I do? I have no idea. Maybe I can see what it is in the pod file.

Then I run which pod on the terminal.

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shunzhu:~ vale$ which pod
/usr/local/bin/pod

Then run mate /usr/local/bin/pod:

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#!/usr/local/Cellar/ruby/2.1.2_3/bin/ruby
#
# This file was generated by RubyGems.
#
# The application 'cocoapods' is installed as part of a gem, and
# this file is here to facilitate running it.
#

require 'rubygems'

version = ">= 0"

if ARGV.first
  str = ARGV.first
  str = str.dup.force_encoding("BINARY") if str.respond_to? :force_encoding
  if str =~ /\A_(.*)_\z/ and Gem::Version.correct?($1) then
    version = $1
    ARGV.shift
  end
end

gem 'cocoapods', version
load Gem.bin_path('cocoapods', 'pod', version)

Maybe I find something, the code in the first line, it is very similar with the error hint:

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-bash: /usr/local/bin/pod: /usr/local/Cellar/ruby/2.1.2_3/bin/ruby: bad interpreter: No such file or directory

Ok, let me change the first line code to this #!/usr/bin/ruby

Try pod again:

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shunzhu:~ vale$ pod
Setting up CocoaPods master repo
Setup completed
Usage:

    $ pod COMMAND

      CocoaPods, the Objective-C library package manager.

Commands:

    + init                Generate a Podfile for the current directory.
    + install             Install project dependencies to Podfile.lock versions
    + ipc                 Inter-process communication
    + lib                 Develop pods
    + list                List pods
    + outdated            Show outdated project dependencies
    + plugins             Show available CocoaPods plugins
    + push                Temporary alias for the `pod repo push` command
    + repo                Manage spec-repositories
    + search              Searches for pods
    + setup               Setup the CocoaPods environment
    + spec                Manage pod specs
    + trunk               Interact with the CocoaPods API (e.g. publishing new
                          specs)
    + try                 Try a Pod!
    + update              Update outdated project dependencies and create new
                          Podfile.lock

Options:

    --silent              Show nothing
    --completion-script   Print the auto-completion script
    --version             Show the version of the tool
    --verbose             Show more debugging information
    --no-ansi             Show output without ANSI codes
    --help                Show help banner of specified command
shunzhu:~ vale$

Until here, I think I have solved the issue. Thanks God!!!